The team were led by head coach David Duggan in his second year and played its home games at RheinEnergieStadion in Cologne, Germany.
The National Football League (NFL) announced the closure of its European branch on June 29.
The selections were: Additionally, Hall and Ross were named defensive and co-offensive MVPs, respectively.
Ross, who shared the award with Frankfurt's quarterback J. T. O'Sullivan, was the NFLEL's leading rusher with 802 yards and four 100-yard games.
He also totaled a league-best 933 yards from scrimmage (802 rushing, 131 receiving) and scored five touchdowns.